Pivotally-mounted member.



` o. AALBORG.

APPLICATION FILED MAY 2. 1906,.

Figi

PATENTEDMAY 28, 1907,

PIVOTALLY` MOUNTED MEMBER.

To @H whom, it may concern,.-

' clearly shown inFigs. `1 and 2.

- adapted to engage.

.block 6 is secured ina charinel-sha '11 and 12 V1`1 and 12 for its full le' UNITED l sTATEs PATENT OFFIOE.l

CHRISTIAN AALBORG, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO w'EsTINGHoUsE ELECTRIC a TIoN or PENNSYLVANIA-- MANUFACTURING COMPANY, A CORPORA- v PlvoTALLY-MouNTED MEMBER.

vBe it known that I, 4CHRISTIAN ALBRG, a citizen of the United States, anda resident of Wilkinsburg, in thecounty of Allegheny and I,State of Pennsylvania, have invented a new and useful Improvement in Pivotally,

MountedMembers, of which the following is a specification.

ig. 3 is a view of'one of the parts that is not Mounted upon the face of-a marble or other suitable slab 1 is a stationa terminal4 piece 2of'an electrical circuit brea er with which a movable and exible switch member 3 is is provided with a upwardly projecting bracket 4 that support a block `5. ofcarbon or of 'other suitableI material, with which another similar block 6, that `is ivotally mounted in the upper end of a mva le channel-shaped arm'7,'1s adapted to engage.A The 8,'that -is slightly narrower than t ingbetween the sides of the channel-shaped 'arm 7, by means of a tap screw Q .,that is into a trian ular-shapedplate 10.-

threaded The plate 10 isprovi ed with rounded lugs into a ertures in the sides of the `c annelshaped) y not-greater than the distance between the sides ofthe channel-shaped arm -7 less the length ofone ofthe lugs. When thus constructed, ,the plate 1,0 may bereadily placed yin position between the sides' of the channelshaped arm 7 by rst inserting one of the lugs spondin'g; aperture and t emlthe otheriinto its corresponding apertlre.` The channelshaped piece 8 is secured to 'the plate'lO censpecincation of Letters Patent. Application filed May2, 1906. 'Serial No. 314,855.' I

apertures in the sides of the arm lend of a coil spring .13

plan view of certainy vparts of the circuit'breaker of Fig. 1, andl The 'terminal piece 2v ed plate e openat two of its corners that Iproject arm 7, the width of the plate 10 beingy tilr into. the 'correin flanges, of another Patented may 28, 1907.-'

' trally with reference thereto and thus serves to prevent' Withdrawal of the lugs from the 7. The threaded end of the screw ,9 is provided with a recess for the reception of one that serves 'to tilt the block 6 forward when it is not inengagement with the block 5, in order to insure anvinitial, make and a nalbreak of the. circuit between the blocks 5 and 6 and a of their contact faces,- T e ception ofascrew 14' that serves to connect one end-cfa flexible conductor 15 thereto,

If desired, the lugs upon which the mov able member is pivoted-may be attached to or be formed' integral with .the sides ofthe channel-shaped arm 7, the apertures .being provided in the other member, and the struc- .'turalfdetails and ythe arran ements of the'- roper adjustment 'l lower end of the, channel-shapedl piece 8 is threaded for the reparts may -be further mo ed within considerabl'e limits `without departing from the spirit of the invention.

I claim as my invention 1 The combination with amember hav'- ing flanges, of another member thatis vpivot- ,ally supported between the flanges by means of lugsupon one of the. members that project into apertures in the other,

ber comprising`a plate.. that isno greater in width than the distance between the flanges and apartless. the length of one of the lugs, that is secured thereto, whereby withdrawalof the lugs from the apertures is prevented.

2'.- The combination with a member having anges, of-another member the latter mem. r

that ispivotally supported 4between'the fianges by means of lugs upon one 'of the mem'bers that project into the apertures in the other, the latter member comprising a late that is no greater in width than ttheflanges less the length of one of the lugs and a part that `is secured thereto, whereby withdrawal ofV the'lugs -from the apertures is `prevented, a screw for clamping said parts together having a recessin'one end and a re located thereingforA normally maqlntaining the pivoted member-in 'a tilted positron.

sllient means partiallyt 3. The combination with 'a member hav# al y supported between said flanges any com-,-

istance between vthe f roc member that is ivot# prises a plate having lugs, the Width of thek plate bein no greater than the distance between the anges less the length of one of the lugs, and a part ofgreater width thanthe plate to which the plate is secured in an approximately central position withreference thereto.

.4. The combination with a member having flanges, of another member that is ivotally supported between said il'anges an comprises a plate having lugs, the width of the plate being no greater than the distance between the :flanges less the length of one of the lugs, and a part of greater width than the plate to which the' plate is secured 'in an approximately central osition 'with reference thereto, a screw for c amping said parts together having a recess in one end, and resilient means partially located ltherein for normally maintaining the pivoted member in a tilted position.

5....The combination with a member having ilanges, of another member that is pivotall supported between the flanges by means of ugs upon one of the members that project into apertures in the other, the latter member comprising a plate that is no greater in width than the distance between the flanges less the length of one of the lugs, and a part of greater widththan the plate to which the plate is secured in an approximately central position with reference thereto.

In testimony whereof, I have hereunto subscribed my name this 30th day of April, 1906.

- CHRISTIAN AALBORG. Witnesses:

A. G. CoRRAo, BIRNEY HINEs. 

